NESA member Arc on here used to do lessons at Seaton Carew...I say used to as I think he has moved elsewhere recenty? Might be worth a PM.
If not try one of the surfcasting websites or even a look on the NESA subforum, I'm sure there will be plenty of lads who will sort you out for a small fee or price of a pint.
Peter Thain defo still does lessons but he does them up at Cambois, fair step for you mate. If you want Peter you can call Anglers United at Lynemouth or drop me a PM and I'll give you his mobile.